Description
Combined glass pH electrode for laboratory and beer applications is a refillable double-reference sensor intended for general laboratory use across the pH range 0 to 14. The spherical sensing tip measures 9,5 mm in diameter and works with a single ceramic junction that provides a typical electrolyte flow of 15–20 µL/h. A double Ag/AgCl reference filled with 3,5 M KCl supports stable readings in aqueous samples. This HI1131B version is permanently cabled with a 1 m coaxial lead terminated in a standard BNC connector, allowing direct connection to a wide range of laboratory meters. Recommended operating temperature is 0 to 100 °C at a maximum pressure of 0,1 bar; the electrode itself contains neither a temperature sensor nor an amplifier. Refillable construction and robust glass body make it suitable for routine quality control, teaching laboratories and brewing-related measurements. Supplied as a single piece from manufacturer Hanna Instruments, the electrode offers a straightforward BNC interface and dependable double-junction performance for everyday pH determination without wireless or smart-meter dependencies.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- pH range: 0 to 14
- Connector: BNC, coaxial cable 1 m
- Junction / flow: Ceramic, single / 15–20 µL/h
- Reference: Double Ag/AgCl; electrolyte 3,5 M KCl, refillable
- Tip: Spherical, diameter 9,5 mm; glass body
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Questions about Refillable Combination pH Electrode with BNC Connector
What is this article?
Refillable Combination pH Electrode with BNC Connector is the article on this page. Luminix Health distributes Hanna Instruments for laboratory use. It sits in pH electrodes & sensors, inside pH & electrochemistry, in Lab instruments.
A pH electrode is a glass membrane and a reference. It is a consumable: the glass ages, the junction clogs, and the reading drifts. A refillable electrode and a gel electrode differ in how they are maintained. The connector has to match the meter. The electrode, not the meter, is usually what is wrong.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is pH electrodes & sensors. The catalogue is Lab instruments.
Shelves beside this one are pH meters, Conductivity meters & cells, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.